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Solids, Liquids, Gases
Chapter 2 Vocabulary
24
Science
8th Grade
10/09/2006

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Term
Solid
Definition
state of matter with a definite shape and volume
Term
Crystalline Solid
Definition
solid that is made of crystals in which particles are arranged in a regular, repeating pattern
Term
Amorphous Solid
Definition
solid made up of particles that are not arranged in a regular pattern
Term
Liquid
Definition
state of matter with a definite volume but no definite shape
Term
Fluid
Definition
any substance that can flow
Term
Surface Tension
Definition
the result of an inward pull among the molecules on the surface closer together; acts as a thin skin
Term
Viscosity
Definition
a liquid's resistance to flowing
Term
Gas
Definition
state of matter with no definite shape or volume
Term
Melting
Definition
change of state from a solid to a liquid
Term
Melting Point
Definition
the temperature at which a substance changes from a solid to a liquid
Term
Freezing
Definition
change of state from a liquid to a solid
Term
Vaporization
Definition
change of state from a liquid to a gas
Term
Evaporation
Definition
vaporization that occurs on the surface of liquid
Term
Boiling
Definition
vaporization that occurs throughout a liquid
Term
Boiling Point
Definition
temperature at which a substance changes from a liquid to a gas
Term
Condensation
Definition
change of state from a gas to a liquid
Term
Sublimation
Definition
change of state from a solid directly to a gas
Term
Pressure
Definition
the force pushing on a surface divided by the area of the surface
Term
Boyle's Law
Definition
the principle that describes the relationship between pressure and volume of a gas at constant temperature
Term
Charles' Law
Definition
the principle that describes the relationship between the temperature and volume of a gas at a constant pressure
Term
Graph
Definition
a diagram that shows how two variables are related
Term
Origin
Definition
the (0,0) point on the line graph
Term
Directly Proportional
Definition
relationship between two variables whose graph is a straight line through the origin
Term
Vary Inversely
Definition
relationship between two variables whose graoh forms a curve that slopes downward
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